Machine foe folding and pasting sheets of paper



(No Model.) 4'S11eets-Sheet 1 C. CHAMBERS, Jr. 8v W. MENDHAM. MACHINEFOR FOLDING AND PASTING SHEETS 0F PAPER.

Patented July 17, 1888.

WITNESSES:

(No Model.) 4 Sheets-Sheet 2'..

G. CHAMBERS. Jr. & W. MENDHAM. MAG-EINE EOE FOLDING AED PASTING SEEETS0E EAPEE.

No. 386,295. Patented July 17, 1888.

@i r mi?, i;

N, PUERS. Phawuhvgnpmr. wnmingtan. D. C.

(No Model.) 4 Sheets-Sheet 3.

C. CHAMBERS, Jr. & W. MENDHAM. MACHINE POR FOLDING AND PASTING SHEETS 0FPAPER.

No. 888,295. Patenteduuly 17, 1888.

kI lli Il nl Il (No Model.) 4 Sheets-Sheet 4.A

C. CHAMBERS, Jr. & W. MENDE-AM. MACHINE EUR FOLDING AND PASTING SHEETSOF PAPER.

Paten ed July 17,1888. d d fg,

' on the line a b, Fig. 5.

'UNiTnn STATES PATENT Orricn.

OYRUS CHAMBERS, JR., AND VILLIAM MENDHAM, OF PHILADELPHIA, PENNSYLVANIA,ASSIGNORS TO SAID CHAMBERS.

MACHINE FOR FOLDING AND PASTlNG SHEETS OF PAPER.

SPECIFICATION forming part of Letters Patent No. 386,295, dated July 17,1888.

Application filed September 30, 1882.

T0 all whom, it may concern:

Be it known that we, OYRUs OHAMBERSJL, and WILLIAM MENDHMI, bothcitizens of the United States, and both residing at the city and countyof Philadelphia. State of Pennsylvania, have invented certain new anduseful Improvements in Machines for Folding and Pasting Sheets of Paper,of which the following is a full, clear, and exact description,reference being had to the accompanying drawings.

Figure 1,Sl1ectl,is a front elevation of part of a machine provided withour improvements. Fig. 2, Sheet 2, is a section on the line a b ofFig.l. Fig. 3, Sheet 8, is a side View, e11- larged, ef that part of themain drum which carries the grippers, and of the feedsegments, showingthe relative position of thelatter at the moment when the forward end ofthe sheet is being seized by the grippers. Fig. 4 is a sectional view online c d of Fig. 3. Fig. 5, Sheet 4, is a front elevation, enlarged, ofa part of the main drum with the pasting devices for a sixteen-pagesheet. Fig. 6 is a section Fig. 7 is a plan view of the paste fountainand roller for sixteenpage sheets. Fig. S is an end view, partly insection,of the pasting devices for an eight-page sheet. Fig. 9 is asection on line c d, Fig. 8, of the rim of the drum-pulley which carriesthe paste-blade for an eight-page sheet. Fig. l0 is a plan view of thefountain and pastewheel for an eight-page sheet. Fig. ll is a sideelevation showing the arrangement and mode of securing the paste-bladefor a sixteenpage sheet to its carrying-arm and the mode of adjustingand securing the latter to the drum-pulley. Fig. 12 is a section onthcline ef, Fig. ll.

Lilie letters of reference,wherc they occur in the several figures,always indicate the saine parts.

This machine is of the class of folding and pasting machines known astwo-revolution 7 machinespvhich are designed to l'old and paste a sheetof paper at every other revolution ofthe main carrier-drum D. ltembodies several improvements, more especially upon a certainAtwo-revolution machine, (for which an applijust referred to.

Serial No. 73,143. (No model.)

simultaneously with the filing ofthe application for a patent for thismachine) whereby the gripping devices which take the forward ends ofthesheets in succession upon the main drum are improved, also the pastingdevices, and great simplicity, speed, and accuracy are attained.

In the accompanying drawings we show only such parts of the machine aswe think suflicient for the clear understanding of our specialimprovements, as hereinafter described and claimed. Those parts whichlieto the rear of the main drum, it will be understood,are similar inoperation to other known folders.

Our machine has the usual inclined feed-table, B, from which the sheetsto be folded and pasted are fed down one by one against the two or morestop-gages (l, whose spurs c rest in grooves in the subjacent pulleys dof the skeleton drum D. These gages are adjustably secured upon aroek-sliaft,which is oscillated to raise and to depress them by means ofa suitable cain-and-lever system, not materially differing from that fora likevpurpose as described in the aforesaid application of ourselveswith Thorwald C. Damborg.

The edge of the sheet rests upon the rotating drum D, remaining incontact with the spurs e of the gages until these are raised by theproperly-timed operation of the devices At this instant our improvedgripping devices are brought into action to seize the sheet. Thesedevices consist of a fixed bar, M, Figs. 2, 3, and 4, securedtransversely at the periphery ofthe main drum D, and opposite thereto aseries of elastic gripperlingers, G, between the pulleys of the drumupon a shaft, b', pivoted within the latter. The gripper-lingers aremade to hold the forward end of the sheet against bar M and to let gothe same at the proper times by suitable mechanism hereinafterdescribed.rFliese gripping or sheet-taking devices eonsist,also, of two or morefeed-segments, N', as wcterm them, carrying a transverse projectingblade, P', whose function is to bend over the forward end of the sheetagainst the edge of the bar M at the moment the stop-gages Care elevatedandthe rotating feed-segments have caught the sheet between theirperiphery and that of the drum. These segments are faced with IOOleather, 1', Figs. 3 and 4, or other ilexible material, in order toinsure a firm hold of the sheet between them and the drum, and theirblade F' is slottcd,so as to clear the pulleys of the latter and thestop-gages and gripperfingers. They are rotated at the same surfacespeed as that of the main drum by the gear 1 and gear 2 on the shaft S,which carries the segments N', and they are long-toothed gears, as it isnot necessary to raise the segments while in motion out of contact withthe drum, except at the times the sheets are to be gripped and the bladeP' descends to bend over the sheet against the bar M, as stated.

Segment-shaft S runs in vertically-movable boxes n, working in frames a,and the periodical upward movements of the shaft are pro duced by meansof a lever, L,which takes under the extensions of the said boxes beyondthe frames, and is vibrated upon its shaft S' by means of asuitably-timed cam, 5, on the end of the cam-shaft H3, which cam isconnected with shaft S' by levers L' and rod N. (Shown in full lines,Fig. 1, and the positions of the same by dotted lines, Fig. 2.) Thisshaft S is caused to descend as the cam retrogrades by means of springsp upon the setscrews t or by gravity; and this downward throw may bechecked at any desired point by means of wedges w between the boxes andthe frame, which wedges are moved in or out by the adjustable carrierbolts j, Fig. t. Vhen the blade P' comes into position to bend the endof the sheet over the bar M, the gripper-ngers G must, of course, standoff from the drum, and immediately after the grippers have been forcedtofhold the bent-over portion of the sheet against the bar. M thefeed-segments, with their blade l?, are elevated to clear the drum, andthe opening of the grippers must be timed to let go the sheet at theinstant Ithe creasingblade E has tucked the sheet into the bite of thenipper-roll H. This opening and closing of the grippers is attained byrock ing the shalt b', which carries them, in the following manner: Theshaft is provided with a bell-crank at one end of the upper or outerarm, C', which has a roller, B2, in contact with the periphery of astationary cam, Z', which is bolted to the frame of the machine. Theperiphery of this cam is circular, with a break or depression, Z2, inthe upper side thereof, which depression the roller B2 of the arm C' iscaused to follow by the action of a compression-spring, O, kept in placeupon a rod, S2, pivoted to theinncrarm, A2, of the bell-crank. Thiscauses the shaft b' to rock, and thereby throw back the gripper-fingersfrom the bar M, thus releasing the sheet. As the drum D rotates, theroller B2 rides up upon the circular part of the periphery of cam Z',the same being concentric with the shaft of the main drum, and thus thegri ppers lclose upon the sheet and retain it in their grasp untilreleased when the roller again reaches the depression Z2. A sheet is fedin by the operator at every other revolution of the main drum. As thismachine is intended to fold sheets of various lengths, it is obviousthat the grippers must let go at different points in the revolution ofthe druni`that is, always when the creasingblade E tucks the sheet intothe bite of the Dipper-cylinder H and vthe nipper-jaws take the sheet. Alonger sheet must be released later-that is, its forward end carriedfarther around by the drum than a short one. This we regulate by meansofan adj listing-segment, B3, in the present instance pivoted on theshaft D', secured to the cam Z' by a bolt. 8, passing through a slot, 9,in the latter. The arc of this segment is on the same circle as that ofthe circular part of the cam Z'. The roller B`2 of thegripper-ngershaft, the face of which roller is made wide enough to extend over bothof said cams, (see Fig. 4.,) is allowed to drop into the depression Z2of earn Zsooner or later, accordingly as the supplemental cam-segment isshifted backward or forward. The farther forward it is brought in thedirection ofrotation of the main drum the later the roller B2 drops andthe gripper-fingers open. In the drawings this supplemental segment isshown in a position when not actually ope1"atng-that is to say, themachine is set to fold sheets of the` shortest length which it isadapted to take.

` We will now proceed to describe our improved devices for applying thefirst pasteline to, first, an eightpage sheet and then to a sixteen-pagesheet as the same is being carried around upon the main drum. Theseconsist, in the rst instance', of a circular blade, F, inserted in andprojecting a short distance beyond the periphery of the middle pulley ofthe drum, and a narrow-faced roller, H2, rotating in an adjustablefountain, G', beneath the drum. (See especially Figs. 6, 8, 9, and 10,Sheet 4.) This fountain is raised and lowered at the right intervals bymeans of levers ICO m and n on rock-shaft B', actuated by a suitablecam, C3, on the shaft H, Fig. 2. The movement of this cam is timed so asto raise .the paste-fountain, with its roller H2, to deliver paste totheblade F during every idle revolution of themain drum and to depress thefountain so as to bring its roller out of coutact at the turns of thedrum when it is carrying a sheet to be pasted and folded. When asixteen-page sheet is to be folded and pasted, the narrow roller isremoved fromthe said fountain and a long roller, H', substituted. It isprovided with a groove, q, Figs. 5 and 7, in the middle in order toprevent the blade F from taking paste when this long roller is used.Adjustable slickers 9 and 10, respectively,are used with thesepaste-rollers in order to remove any surplus of paste. Ascraper,11,Figs. 5 and 7, is also employed in connection with the longroller, so as to prevent paste from collecting in the groove q.

The blade for applying paste to the first paste-line of asixteen-pagesheet (which'pasteline is always at right angles to that ofthe eight-page sheet) is marked K where shown in the drawings. Itprojects a short distance IIO beyond the main drum and is adjustablysecured to adjustable arms U' upon the drumshaft D'. (See Figs. 1, 2, 5,6, 11, and 12.)

Arms U" are held. in place by means of clamps X', which bind them to thesides of the two outer pulleys of the drum, respectively. The arms U'are made thus adjustable on the arc of the main drum in order to bringthe blade K to the proper relative position to suit the length of thesheets to be pasted. The

cam C3 is adjusted so as to elevate and de press the paste-fountain G atthe proper times, in the same way as when thelatteris carrying theroller H2. These paste-applying rollers are caused to rotate at the samesurface speed as that of the main drum by means of a system of pulleysand belts, 12,1314., and 15, driven from the main shaft C2 of themachine.

It will be seen that the first paste-lines are applied to the innersurface of the sheets, which is also the case in the machinehereinbefore referred to, for which au application for a patent is filedby us with Thorwald C. Damborg,

but by a different combination of mechanism.

The creasing-blade E is adjustable with relation to the main drum, sothat its relative position with regard to the paste-blade K and thedepression Z2 of the cam may be changed to suit the various lengths ofsheets which the machine is designed to fold. To this end the saidcreasingblade is secured to arms U, pivoted on the main shaft D', andeach of these arms has a curved slot, a', through which passes a bolt,b", whereby the bladecarrying arms are fastened to the adjacent spokes,respectively, of the main drum. The required adjustment may readily bemade when the blade is between the nippers of the nipper-roll H, as inFig. 2, by simply loosening the bolts and then turning the main drulneither way, as circumstances require.

The most important and'valuable of the improvements hereinbeforedescribed is that of the gripping or sheet taking mechanism, whereby thesheets are safely taken by the main carrier-drum (running at a higher Velocity than heretofore practicable with such machines) with a positiveand certain action, noiselessly, and without tearing of the sheets bythe gripping devices. This tearing of the sheet in the act of overcomingits inertia has heretofore been in the way of a more rapid running ofthe machines; but now, the forward end of the sheet being bent and heldover the bar M, a hold or line of resistance is given along the entirewidth ofthe sheet.

It will be observed that the gear 2 on the feed segment shalt S engageswith the gear l on the drnm'shaft D', and the gear 1a on the end ofshaft D'engages with a gear on the nipper-shal't C, (which gear is notshown, it being directly in the rear of gear l in Fig. l.) By thisarrangement the position of the main drum D with relation to both thefeed-segments and the nipper-roll H always remains the same as the partsrotate, which, it is obvious, is essential to the successful operationof the described devices, which respectively take the sheet upon thedrum and from the same.

1. In a folding-machine, the combination, With the rotary main drumhaving mechanism for gripping and releasing the sheets of paper,substantially as described, of the rotary feedsegments mounted inreciprocating bearings, and the blade, all arranged substantially as andfor the purpose set forth.

2. The vertically-reciprocating rotary feedsegments and blade, thestop-gages, the cam Z', and the main drum provided with the transversebar M, and the coacting gripper-fingers G, and the creasing-blade E, allconstructed, combined, and operating substantially as and for thepurposes set forth.

3. The combination, with the rotary main drum having mechanism forgripping and releasing the sheets of paper and the cam, bothsubstantially as described, of the adjustable supplemental cam, therotary feed-segments mounted in the reciprocating bearing, and theadjustable folding-blade, as and for the purpose set forth.

4. The combination, with the main drum and its gripping mechanism, ofthe feed-segments formed with the blade and having the shaft mounted inmovable boxes, and the lever L on rock-shaft S, actuated by mechanismsubstantially as described, as and for the purpose set forth.

5. In combination with the main drum provided with the paste-blade F inthe arc of a circle concentric with the drum, the pastefonntain providedwith the roller H", substantially as shown and described.

6. In combination with the main drum provided with the paste-blades Fand K, the vibrating fountain G', adapted to receive either anarrow-faced roller for applying paste to the blade F or a long-facedroller for applying paste to the blade K, substantially as set forth.

7. In combination with the drum anda pasting-blade thereon, thevibrating pastefountain G', provided with a roller rotated at a surfacespeed equal to that of the said drum, substantially as stated.

8. The drum D, having the adjustable creasing-blade E and the grippersG, its shaft D', carrying the gears 1 and 1, the feed-segments, theirshaft S, with gear 2, the nipper-roll, and its shaft C2, having a gearwhich engages with the gear la on shaft D', all combined, arranged, andoperating substantially as and for the purpose described.

In testimony whereof we have hereunto affixed our signatures this 15thday of September, A D. 1882.

CYRUS CHAMBERS, JR. a XVILLIAM MENDHAM.

Vitnesses:

MARY P. CHAMBERS, S. B. CHAMBERS.

IOO

